Bought my wagon second hand as a work vehicle. It already had over 200,000 miles on it then. The engine has developed a ticking, like the oil is low when it's not. I keep a check on it because it leaks. (It was a $900 car that I've gotten over a year's use out of! lol) Was thinking of swapping it out to a 2.5. I'm new to Subarus and learning about them as I go so forgive the ignorance on the subject. It currently has a 2.2 and 5 speed tranny. My questions are, Is the 2.5 a better engine? Will the current tranny bolt up to different engines? OR Should I just swap another 2.2 into it? Advice is greatly appreciated, thanks in advance for your time.